Computer Simulation of Ferrite Transformation during Hot Working of Low Carbon Steel

(整期优先)网络出版时间:2004-05-15
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Onthebasisoftransformationkineticsandthermodynamics,theaustenite-ferritetransformationstarttemperatureduringdeformationwaspredictedforseveralgradesoflow-carbonsteelsunderdifferentprocessingconditions.ResultsindicatethatAr3dtemperaturemostlydependedonalloyingcompositionandprocessingparameters.Ar3dincreasedasstrainrateorstrainincreasedforthesamesteelgrade.Inviewofenhancementofdeformationontransformation,thebasickineticsmodelwasestablishedtosimulatedeformationinducedtransformationbehavior,usingwhichtheinfluenceofthedeformationstoredenergyandeffectivedeformationledgeonthenucleationandgrowthcanbeconsidered.Thesimulatedresultsareingoodagreementwithexperimentresults.